Subset/Examples/Abstract Example 3

Example of Subset

Let $A$ denote the set:

$A := \set {1, 2, 3}$

Let $B$ denote the set:

$B := \set {\&, 3, +, 1, 2}$

Then:

$A \subseteq B$
$A \subseteq A$
$B \subseteq B$


Sources

  • 1993: Richard J. Trudeau: Introduction to Graph Theory ... (previous) ... (next): $2$. Graphs: Sets: Definition $3$
This article is issued from ProofWiki. The text is available under Creative Commons Attribution-ShareAlike License unless otherwise noted. Additional terms may apply for the media files.